Installing foil bubble wrap insulation on your metal shed’s roof keeps the structure warmer in the winter and cooler in the summer, which helps protect the objects stored inside. The insulation is constructed from solid, single- or double-layered foil wrap that doesn’t allow moisture, wind or dust to enter the shed through the roof. Attach the foil bubble wrap insulation to the metal shed's rafters to ensure it doesn't slip.
Things You'll Need
- Double-sided foil adhesive tape
- Furring strips
- 2-inch metal screws
- Drill with screwdriver bit
- Foil tape
Measure the metal roof to determine the amount of foil bubble wrap insulation required for the project. Purchase approximately 10 to 15 percent more product than required to account for overlapping and to provide the proper air gap between the purlins -- the horizontal lengths of wood that support the roof panels between the rafters.
Cover the metal roof purlins with double-sided foil adhesive tape. Unroll the foil wrap insulation and attach it to the first purlin. Continue to unroll the foil insulation and attach it the remaining purlins, paying attention to allow the insulation to sag at least 1 inch between the horizontal members. The sagging provides an air gap that raises the insulation’s efficiency.
Continue to attach the foil bubble wrap insulation to the metal roofing purloins, overlapping the adjoining sheets 2 inches as you go. This is a temporary hold to keep the foil bubble wrap in place while you prepare the next step.
Secure the foil bubble wrap to the framing members with furring strips. Attach the furring strips perpendicular to the purloins every 24 inches to the framing members with 2-inch metal screws, paying attention to not disrupt the insulation’s sagging. Use a drill equipped with a screwdriver bit to drive the screws into the framing members.
Cover the seams of the bubble insulation with foil tape.
Tips & Warnings
- Wear work gloves while applying the product to prevent skin irritation.
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